Nvidia Drivers Fix

Fixing Nvidia graphics drivers when they crash.

Go to the virtual console using CRTL+ALT+F1, then:
sudo service lightdm stop sudo apt-get purge nvidia-* sudo apt-get autoremove sudo apt-get clean sudo add-apt-repository ppa:graphics-drivers/ppa -y sudo apt-get -y update sudo apt-get -y install nvidia-415 sudo reboot
Follow this link for the raw script.